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GB/T 23278.4-2009
Methods for chemical analysis of sodium stannate - Part 4: Determination of lead content - Flame atomic absorption spectrometry
GB/T 23278.5-2009
Methods for chemical analysis of sodium stannate - Part 5: Determination of antimony content - Malachite green photometric method
GB/T 23278.6-2009
Methods for chemical analysis of sodium stannate - Part 6: Determination of free alkali content - Titration
GB/T 23278.7-2009
Methods for chemical analysis of sodium stannate - Part 7: Determination of alkali insoluble matter - Gravimetric analysis
GB/T 22663-2008
Electrical equipment of industrial machines - Electromagnetic compatibility - Immunity requirements for machine tools
GB/T 22665.1-2008
Measurement of vibrations at the handle of hand-held electric tools - Part 1: Drills and impact drills
GB/T 7602.2-2008
变压器油、汽轮机油中T501抗氧化剂含量测定法 第2部分:液相色谱法
Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 2: Liquid chromatography